Finding the Fourth Proportional to 117,014,419.62, 161,402,145.57 and 75,251,286.18
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Solution
The fourth proportional to 117,014,419.62, 161,402,145.57 and 75,251,286.18 is: 103,796,772.11
Step by Step Solution
- Step 1: Write the proportion equation
117,014,419.62 : 161,402,145.57 = 75,251,286.18 : x - Step 2: Convert to fraction form
117,014,419.62/161,402,145.57 = 75,251,286.18/x - Step 3: Cross multiply
117,014,419.62x = 161,402,145.57 × 75,251,286.18 - Step 4: Simplify right side
117,014,419.62x = 12,145,719,046,354,090 - Step 5: Solve for x
x = 12,145,719,046,354,090/117,014,419.62 - Step 6: Final answer
x = 103,796,772.11
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.